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Details for Patent: 7,959,946

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Which drugs does patent 7,959,946 protect, and when does it expire?

Patent 7,959,946 protects ACTOPLUS MET XR and is included in one NDA. There has been one Paragraph IV challenge on Actoplus Met XR.

This patent has seventy patent family members in twenty-four countries.

Summary for Patent: 7,959,946

Title:Pharmaceutical formulation containing a biguanide and a thiazolidinedione derivative
Abstract: A pharmaceutical dosage form comprising a controlled release component comprising an antihyperglycemic drug in combination with a second component comprising a thiazolidinedione derivative is herein disclosed and described.
Inventor(s): Kositprapa; Unchalee (Davie, FL), Goldfarb; Robert I. (Golden Beach, FL), Cardinal; John R. (Tamarac, FL), Nangia; Avinash (Weston, FL)
Assignee: Watson Pharmaceuticals, Inc. (Corona, CA)
Application Number:10/777,542
Patent Claim Types:
see list of patent claims
Composition; Compound; Dosage form; Formulation; Device;

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Takeda Pharms Usa
ACTOPLUS MET XR
metformin hydrochloride; pioglitazone hydrochloride
TABLET, EXTENDED RELEASE;ORAL022024-001May 12, 2009RXYesNo7,959,946► SubscribeY
Takeda Pharms Usa
ACTOPLUS MET XR
metformin hydrochloride; pioglitazone hydrochloride
TABLET, EXTENDED RELEASE;ORAL022024-002May 12, 2009RXYesYes7,959,946► SubscribeY
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Non-Orange Book Patents for Patent: 7,959,946

For Orange Book-listed patents (shown in the main table above) generic applications must certify that the listed patents are expired, invalid, or will not be infringed by generic entry.

The non-Orange Book patents listed below do not require formal certifications, so they do not automatically impede generic entry. Instead, they represent potential opportunities for branded firms to block generic entry through patent infringment challenges.

Patent No. Title Estimated Patent Expiration
8,668,931Pharmaceutical formulation containing a biguanide and a thiazolidinedione derivative► Subscribe
7,785,627Pharmaceutical formulation containing a biguanide and a thiazolidinedione derivative► Subscribe
9,060,941Pharmaceutical formulation containing a biguanide and a thiazolidinedione derivative► Subscribe
8,084,058Pharmaceutical formulation containing a biguanide and a thiazolidinedione derivative► Subscribe
8,470,368Pharmaceutical formulation containing a biguanide and a thiazolidinedione derivative► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Because of the complexity of determining patent expiration dates it is advisable to have patent counsel verify freedom to operate.

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International Patent Family for Patent: 7,959,946

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Ukraine91852► Subscribe
TaiwanI361070► Subscribe
Taiwan200529831► Subscribe
TaiwanI344375► Subscribe
Singapore160415► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

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